Ticket 47840 - Fix setup-ds-admin.pl to create adm.conf with sbin scripts
    https://fedorahosted.org/389/ticket/47840
    
    Bug Description:  Now that https://fedorahosted.org/389/ticket/528 is fixed, the
    next step is to allow building the server with the instance specific scripts
    disabled.
    
    Fix Description:  This corrects the behaviour of setup-ds-admin.pl to write out
    it's adm.conf for the configuration directory, to utilise the sbin scripts with
    an argument to start the dirsrv instances rather than using the per instance
    script.
    
    Author: wibrown
    
    Review by: nhosoi (Thanks!)